<!doctype html>
<html>
 <head>
 <meta charset="utf-8">
 <title>Velocity 1</title>
 <link rel="stylesheet" href="style.css">
 </head>
 <body>
 <canvas id="canvas" width="400" height="400"></canvas>
 <script src="utils.js"></script>
 <script src="ball.js"></script>
 <script>
 window.onload = function () {
 var canvas = document.getElementById('canvas'),
 context = canvas.getContext('2d'),
 ball = new Ball(),
 vx = 1;
 ball.x = 50;
 ball.y = 100;
 (function drawFrame () {
 window.requestAnimationFrame(drawFrame, canvas);
 context.clearRect(0, 0, canvas.width, canvas.height);
 ball.x += vx;
 ball.draw(context);
 }());
 };
 </script>
 </body>
</html>